The Great Epic of the Bhārata dynasty 3.280.17

3.280.17

sāvitryuvāca |
astaṃ gate mayāditye bhoktavyaṃ kṛtakāmayā |
eṣa me hṛdi saṃkalpaḥ samayaśca kṛto mayā || 17 ||

Then, O best of the Bharatas, well-pleased, her father-in-law and mother-in-law said these words unto the princess seated in a corner, 'Thou hast completed the vow as prescribed. The time for thy meal hath now arrived; therefore, do thou what is proper!' Thereat Savitri said, 'Now that I have completed the purposed vow, I will eat when the Sun goes down. Even this is my heart's resolve and this my vow!'